8047345849 has 9 divisors (see below), whose sum is σ = 8131732623. Its totient is φ = 7963828632.

The previous prime is 8047345847. The next prime is 8047345877. The reversal of 8047345849 is 9485437408.

The square root of 8047345849 is 89707.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 5608961449 + 2438384400 = 74893^2 + 49380^2 .

It is not a de Polignac number, because 8047345849 - 2¹ = 8047345847 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 8047345796 and 8047345805.

It is not an unprimeable number, because it can be changed into a prime (8047345847) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 9777652 + ... + 9778474.

It is an arithmetic number, because the mean of its divisors is an integer number (903525847).

Almost surely, 2^8047345849 is an apocalyptic number.

8047345849 is the 89707-th square number.

8047345849 is the 44854-th centered octagonal number.

It is an amenable number.

8047345849 is a deficient number, since it is larger than the sum of its proper divisors (84386774).

8047345849 is an frugal number, since it uses more digits than its factorization.

8047345849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1864 (or 932 counting only the distinct ones).

The product of its (nonzero) digits is 3870720, while the sum is 52.

The cubic root of 8047345849 is about 2003.9377294719.

The spelling of 8047345849 in words is "eight billion, forty-seven million, three hundred forty-five thousand, eight hundred forty-nine".